
Verbo irregular: tread - trod - trod, trodden
Presente | Presente continuo | Pretérito | Pretérito continuo | 
|  do I tread? do you tread? does he tread? do we tread? do you tread? do they tread?  |  am I treading? are you treading? is he treading? are we treading? are you treading? are they treading?  | did I tread? did you tread? did he tread? did we tread? did you tread? did they tread?  |  was I treading? were you treading? was he treading? were we treading? were you treading? were they treading?  | 
Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
|  have I trod, trodden? have you trod, trodden? has he trod, trodden? have we trod, trodden? have you trod, trodden? have they trod, trodden?  |  have I been treading? have you been treading? has he been treading? have we been treading? have you been treading? have they been treading?  | had I trod, trodden? had you trod, trodden? had he trod, trodden? had we trod, trodden? had you trod, trodden? had they trod, trodden?  | had I been treading? had you been treading? had he been treading? had we been treading? had you been treading? had they been treading?  | 
Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
|  will I tread? will you tread? will he tread? will we tread? will you tread? will they tread?  |  will I be treading? will you be treading? will he be treading? will we be treading? will you be treading? will they be treading?  |  will I have trod, trodden? will you have trod, trodden? will he have trod, trodden? will we have trod, trodden? will you have trod, trodden? will they have trod, trodden?  |  will I have been treading? will you have been treading? will he have been treading? will we have been treading? will you have been treading? will they have been treading?  | 
Presente | Presente continuo | Passado | Passado continuo | 
|  would I tread? would you tread? would he tread? would we tread? would you tread? would they tread?  |  would I be treading? would you be treading? would he be treading? would we be treading? would you be treading? would they be treading?  |  would I have trod, trodden? would you have trod, trodden? would he have trod, trodden? would we have trod, trodden? would you have trod, trodden? would they have trod, trodden?  |  would I have been treading? would you have been treading? would he have been treading? would we have been treading? would you have been treading? would they have been treading?  | 
Infinitivo | Imperativo | 
Infinitivo | Imperativo | ||
| to tread | - - -  | 
Presente | Passado | ||
| treading | trod, trodden |